(19)
(11) EP 0 530 972 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.06.1993 Bulletin 1993/26

(43) Date of publication A2:
10.03.1993 Bulletin 1993/10

(21) Application number: 92307010.6

(22) Date of filing: 31.07.1992
(51) International Patent Classification (IPC)5: G02F 1/136, H01L 21/72
(84) Designated Contracting States:
DE FR GB

(30) Priority: 02.08.1991 JP 194115/91
11.10.1991 JP 292259/91
31.01.1992 JP 40448/92
31.01.1992 JP 40449/92
31.01.1992 JP 40453/92
31.01.1992 JP 40490/92
31.01.1992 JP 40582/92

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Yonehara, Takao, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Miyawaki, Mamoru, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Ishizaki, Akira, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Hoshi, Junichi, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Sakamoto, Masaru, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Sugawa, Shigetoshi, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Inoue, Shunsuke, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Koizumi, Toru, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Kohchi, Tetsunobu, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Sakaguchi, Kiyofumi, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Watanabe, Takanori, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)

(74) Representative: Beresford, Keith Denis Lewis et al
BERESFORD & Co. 2-5 Warwick Court High Holborn
London WC1R 5DJ
London WC1R 5DJ (GB)


(56) References cited: : 
   
       


    (54) Liquid crystal image display unit


    (57) A liquid crystal image display unit created on a substrate non-transparent to the light in the visible radiation area, characterized in that a portion beneath a liquid crystal pixel part on said substrate is removed, so that the light is made transmissive through said liquid crystal pixel part.






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